It’s nice that Apple has bundled all the tools necessary to turn a Macintosh into a server (mail, web, file sharing, DHCP, DNS, &c.) into a $20 app store purchase. I think the Server version of Mac OS X used to cost $500, and the new low price really puts the power of a server into the hands of the masses.
Unfortunately, Apple has also dumbed down the whole server interface. I can see what they were trying for; they want to turn the experience of editing config files into the experience of clicking on something that looks like an on/off switch. Problem is, there’s still a need for server administrators and there’s still a need to know how to edit config files. It would be like buying a button for your car’s dashboard that says FIX IT and telling you, hey, congratulations, you’re a mechanic now! But if you press that button and nothing happens, then, well, you’re in trouble.